To compute the slope of a segment, given its endpoints
, you write

Given this formula, you have the four slopes:




Now, two segments are parallel if they have the same slope. So, AB and CD are parallel, because they both have slope 1, but BC and DA are not parallel.
This means that ABCD is not a parallelogram, because in parallelograms the opposite sides are parallel.
Answer:
-3 and positive 3
Step-by-step explanation:
Answer:
7x-6
Step-by-step explanation:
x+3+3x-18+3x+9 (Add like terms)
(x+3x+3x) (3-18+9) (solve) ( x is the same as 1x)
(7x) (-6)
7x-6
Answer:
X=5
Step-by-step explanation:
Multiply by 3 first
100 / 20 = 5
5 * 7 = 35
So the dog ate 35% of it